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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CustomElementDescriptor_h |
| 6 #define CustomElementDescriptor_h |
| 7 |
| 8 #include "core/CoreExport.h" |
| 9 #include "wtf/Allocator.h" |
| 10 #include "wtf/HashTableDeletedValueType.h" |
| 11 #include "wtf/text/AtomicString.h" |
| 12 |
| 13 namespace blink { |
| 14 |
| 15 // Describes what elements a custom element definition applies to. |
| 16 // |
| 17 // There are two kinds of definitions: The first has its own tag name; |
| 18 // in this case the "name" (definition name) and local name (tag name) |
| 19 // are the same. The second kind customizes a built-in element; in |
| 20 // that case, the descriptor's local name will be a built-in element |
| 21 // name, or an unknown element name that is *not* a valid custom |
| 22 // element name. |
| 23 // |
| 24 // This type is used when the kind of custom element definition is |
| 25 // known, and generally the difference is important. For example, a |
| 26 // definition for "my-element", "my-element" must not be applied to an |
| 27 // element <button is="my-element">. |
| 28 class CORE_EXPORT CustomElementDescriptor final { |
| 29 DISALLOW_NEW_EXCEPT_PLACEMENT_NEW(); |
| 30 public: |
| 31 CustomElementDescriptor() |
| 32 { |
| 33 } |
| 34 |
| 35 CustomElementDescriptor( |
| 36 const AtomicString& name, |
| 37 const AtomicString& localName) |
| 38 : m_name(name) |
| 39 , m_localName(localName) |
| 40 { |
| 41 } |
| 42 |
| 43 explicit CustomElementDescriptor(WTF::HashTableDeletedValueType value) |
| 44 : m_name(value) |
| 45 { |
| 46 } |
| 47 |
| 48 bool isHashTableDeletedValue() const |
| 49 { |
| 50 return m_name.isHashTableDeletedValue(); |
| 51 } |
| 52 |
| 53 bool operator==(const CustomElementDescriptor& other) const |
| 54 { |
| 55 return m_name == other.m_name && m_localName == other.m_localName; |
| 56 } |
| 57 |
| 58 const AtomicString& name() const { return m_name; } |
| 59 const AtomicString& localName() const { return m_localName; } |
| 60 |
| 61 private: |
| 62 AtomicString m_name; |
| 63 AtomicString m_localName; |
| 64 }; |
| 65 |
| 66 } // namespace blink |
| 67 |
| 68 #endif // CustomElementDescriptor_h |
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